Karbon

From the Karbon site

Karbon is a vector drawing application with an user interface that is easy to use, highly customizable and extensible. That makes Karbon a great application for users starting to explore the world of vector graphics as well as for artists wanting to create breathtaking vector art.

Whether you want to create clipart, logos, illustrations or photorealistic vector images – look no further, Karbon is the tool for you!